{
 "ocl_version": "0.1.0",
 "name": "Chemin d'Itravers",
 "slug": "chemin-d-itravers",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.419335815929344,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 104.0,
   "end_distance_m": 106.0,
   "start_elevation_m": 899.7709896885088,
   "end_elevation_m": 900.2593764048274,
   "min_gradient_pct": -4.858703817177457
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.259814575308763,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 128.0,
   "end_distance_m": 131.0,
   "start_elevation_m": 905.0546447361788,
   "end_elevation_m": 905.7824391734381,
   "min_gradient_pct": -3.7585394483054793
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.880940930955603,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 130.0,
   "end_distance_m": 135.0,
   "start_elevation_m": 905.5245780712928,
   "end_elevation_m": 906.7186251178406,
   "min_gradient_pct": -3.2279213095262094
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.526018225180678,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 130.0,
   "end_distance_m": 140.0,
   "start_elevation_m": 905.5245780712928,
   "end_elevation_m": 907.8771798938109,
   "min_gradient_pct": -2.2653432639276616
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.440684684199482,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 120.0,
   "end_distance_m": 140.0,
   "start_elevation_m": 903.189042956971,
   "end_elevation_m": 907.8771798938109,
   "min_gradient_pct": -0.27839421206522275
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.909282815123333,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 115.0,
   "end_distance_m": 140.0,
   "start_elevation_m": 902.14985919003,
   "end_elevation_m": 907.8771798938109,
   "min_gradient_pct": 0.15661681466372102
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.87496245715488,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 91.0,
   "end_distance_m": 141.0,
   "start_elevation_m": 897.1260236937719,
   "end_elevation_m": 908.0635049223494,
   "min_gradient_pct": 4.063146530367021
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.899655247068722,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 41.0,
   "end_distance_m": 141.0,
   "start_elevation_m": 888.1638496752806,
   "end_elevation_m": 908.0635049223494,
   "min_gradient_pct": 9.013962320561745
  }
 ],
 "shape": {
  "ascent_concentration": 0.347,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 149.0,
  "shape_class": "sustained"
 },
 "length_m": 302.24920144248404,
 "start_elevation_m": 881.746122708981,
 "end_elevation_m": 926.9378596484463,
 "endpoint_gain_m": 45.19173693946527,
 "overall_gradient_pct": 14.951813511429558,
 "accumulated_ascent_m": 45.478976711856376,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.880940930955603,
   "start_distance_m": 130.0,
   "end_distance_m": 135.0,
   "midpoint_distance_m": 132.5,
   "start_elevation_m": 905.5245780712928,
   "end_elevation_m": 906.7186251178406,
   "start_xy": [
    2603739.34352318,
    1122015.7269929338
   ],
   "end_xy": [
    2603744.162316217,
    1122014.4263952493
   ]
  },
  "max_10m": {
   "gradient_pct": 23.526018225180678,
   "start_distance_m": 130.0,
   "end_distance_m": 140.0,
   "midpoint_distance_m": 135.0,
   "start_elevation_m": 905.5245780712928,
   "end_elevation_m": 907.8771798938109,
   "start_xy": [
    2603739.34352318,
    1122015.7269929338
   ],
   "end_xy": [
    2603748.9343276974,
    1122012.9337779412
   ]
  },
  "max_20m": {
   "gradient_pct": 23.440684684199482,
   "start_distance_m": 120.0,
   "end_distance_m": 140.0,
   "midpoint_distance_m": 130.0,
   "start_elevation_m": 903.189042956971,
   "end_elevation_m": 907.8771798938109,
   "start_xy": [
    2603729.4959130255,
    1122017.4661232461
   ],
   "end_xy": [
    2603748.9343276974,
    1122012.9337779412
   ]
  },
  "max_25m": {
   "gradient_pct": 22.909282815123333,
   "start_distance_m": 115.0,
   "end_distance_m": 140.0,
   "midpoint_distance_m": 127.5,
   "start_elevation_m": 902.14985919003,
   "end_elevation_m": 907.8771798938109,
   "start_xy": [
    2603724.572107948,
    1122018.3356884022
   ],
   "end_xy": [
    2603748.9343276974,
    1122012.9337779412
   ]
  },
  "max_50m": {
   "gradient_pct": 21.87496245715488,
   "start_distance_m": 91.0,
   "end_distance_m": 141.0,
   "midpoint_distance_m": 116.0,
   "start_elevation_m": 897.1260236937719,
   "end_elevation_m": 908.0635049223494,
   "start_xy": [
    2603701.1693617436,
    1122023.3964805463
   ],
   "end_xy": [
    2603749.8887299937,
    1122012.6352544795
   ]
  },
  "max_100m": {
   "gradient_pct": 19.899655247068722,
   "start_distance_m": 41.0,
   "end_distance_m": 141.0,
   "midpoint_distance_m": 91.0,
   "start_elevation_m": 888.1638496752806,
   "end_elevation_m": 908.0635049223494,
   "start_xy": [
    2603652.8697566777,
    1122035.1688939137
   ],
   "end_xy": [
    2603749.8887299937,
    1122012.6352544795
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.2279213095262094,
   "start_distance_m": 284.0,
   "end_distance_m": 289.0,
   "midpoint_distance_m": 286.5,
   "start_elevation_m": 926.795346085494,
   "end_elevation_m": 926.6339500200177,
   "start_xy": [
    2603890.1643350436,
    1121997.0478496684
   ],
   "end_xy": [
    2603895.155146563,
    1121996.7448638987
   ]
  },
  "min_10m": {
   "gradient_pct": -2.2653432639276616,
   "start_distance_m": 279.0,
   "end_distance_m": 289.0,
   "midpoint_distance_m": 284.0,
   "start_elevation_m": 926.8604843464104,
   "end_elevation_m": 926.6339500200177,
   "start_xy": [
    2603885.173523524,
    1121997.350835438
   ],
   "end_xy": [
    2603895.155146563,
    1121996.7448638987
   ]
  },
  "min_20m": {
   "gradient_pct": -0.27839421206522275,
   "start_distance_m": 274.0,
   "end_distance_m": 294.0,
   "midpoint_distance_m": 284.0,
   "start_elevation_m": 926.760272497394,
   "end_elevation_m": 926.704593654981,
   "start_xy": [
    2603880.1827120045,
    1121997.6538212074
   ],
   "end_xy": [
    2603900.1459580828,
    1121996.4418781293
   ]
  },
  "min_25m": {
   "gradient_pct": 0.15661681466372102,
   "start_distance_m": 276.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 288.5,
   "start_elevation_m": 926.8233148066411,
   "end_elevation_m": 926.862469010307,
   "start_xy": [
    2603882.179036612,
    1121997.5326268994
   ],
   "end_xy": [
    2603907.13309421,
    1121996.017698052
   ]
  },
  "min_50m": {
   "gradient_pct": 4.063146530367021,
   "start_distance_m": 252.0,
   "end_distance_m": 302.0,
   "midpoint_distance_m": 277.0,
   "start_elevation_m": 924.9043615320568,
   "end_elevation_m": 926.9359347972403,
   "start_xy": [
    2603858.303947463,
    1121996.03076367
   ],
   "end_xy": [
    2603908.1312565138,
    1121995.9571008983
   ]
  },
  "min_100m": {
   "gradient_pct": 9.013962320561745,
   "start_distance_m": 202.0,
   "end_distance_m": 302.0,
   "midpoint_distance_m": 252.0,
   "start_elevation_m": 917.9219724766785,
   "end_elevation_m": 926.9359347972403,
   "start_xy": [
    2603809.496802746,
    1121999.7381358873
   ],
   "end_xy": [
    2603908.1312565138,
    1121995.9571008983
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.419335815929344,
   "start_distance_m": 104.0,
   "end_distance_m": 106.0,
   "midpoint_distance_m": 105.0,
   "start_elevation_m": 899.7709896885088,
   "end_elevation_m": 900.2593764048274,
   "start_xy": [
    2603713.739736778,
    1122020.2487317459
   ],
   "end_xy": [
    2603715.7092588088,
    1122019.9009056834
   ]
  },
  "max_3m": {
   "gradient_pct": 24.259814575308763,
   "start_distance_m": 128.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 129.5,
   "start_elevation_m": 905.0546447361788,
   "end_elevation_m": 905.7824391734381,
   "start_xy": [
    2603737.374001149,
    1122016.0748189962
   ],
   "end_xy": [
    2603740.3282841956,
    1122015.5530799027
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "elevation_crs": "EPSG:2056",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/ch/swissalti3d_2024_2603-1121_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2603-1122_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T19:33:09+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10-batch.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ch-run6-260910",
  "elevation_provider": "swisstopo swissALTI3D",
  "elevation_licence": "swisstopo open government data (OGD): free use, attribution '\u00a9 swisstopo' \u2014 https://www.swisstopo.admin.ch/en/terms-and-conditions",
  "elevation_dataset": "swissALTI3D 0.5 m DTM (Federal Office of Topography swisstopo)",
  "elevation_tile_ids": [
   "2603-1121",
   "2603-1122"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Gr\u00f4ne",
  "county": "Valais/Wallis",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}